Seems there was an official after party at CATCH, which Adam also attended:

HAUTE EVENT: Brad Pitt in New York for World War Z Premiere and After Party at CATCH

Brad Pitt and David Granger

Haute Living was inside the New York Premiere of Brad Pitt’s World War Z movie last night at the Ziegfeld Theater. Brad took the stage before the film began to thank Hollywood insiders for the film, which was produced by his company, Plan B.

The zombie apocalyptic film drew screams from the audience as Brad plays a former UN agent searching the globe for a way to stop the undead. Following the film, VIP guests continued the night at Catch where Esquire Magazine and DeLeon Tequila hosted a star studded bash to fete the summer blockbuster.

At the party, Brad’s co-star Mireille Enos joined the fun along with starts like Adam Lambert, Katrina Bowden, Casey Affleck and Gabriel Macht. As Pitt mingled from the rooftop of the venue to the 3rd floor restaurant, partygoers flocked in his direction wherever that was in an effort to catch a glimpse or photo. Pitt was all smiles and more than happy to take fan pics. The A-List crowd partied until 1am.